28
19
20
21
17
Complete all wiring connections as indicated in the sequence. Switch on the main switch. Nothing
happens. When there is a drop of water on the touch plate, the LED will light up. Even the touch plate is
dried after that, the LED will still continue to glow, as the gate of the SCR has been opened. Base on this
principle, you can set up a monitor to indicate that if the tide has ever reached a certain height, or if
there is any rain during the period that you are out of home for a trip, or if something has ever got
wet...... etc.
12.23 Digital segment LED displaying "1"
Wiring Sequence
4-17, 18-7, 8-36, 3-39-43
8
100Ω
v+
37
35
39
38
40
43
42
41
Complete all wiring connections as indicated in the sequence. By switching ON, the digital segment LED
will display "1".
12.24 Digital segment LED displaying "2"
Wiring Sequence
4-17, 18-7, 8-36, 3-37-38-39-40-42
V. 01 – 01/02/2024
29
51
50
18
3
4
7
18
17
4
3
KNS130
20
©Velleman nv